Antifeedant activity of some pentacyclic triterpene acids and their fatty acid ester analogues

被引：52

作者：

Mallavadhani, UV ^{[1
]}

Mahapatra, A

Raja, SS

Manjula, C

机构：

[1] CSIR, Reg Res Lab, Forest & Marine Prod Dept, Nat Resources Div, Bhubaneswar 751013, Orissa, India

[2] Osmania Univ, Dept Zool, Hyderabad 500017, Andhra Pradesh, India

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2003年 / 51卷 / 07期

关键词：

antifeedant activity; ursolic acid; oleanolic acid; fatty acid esters; tobacco caterpillar; Spodoptera litura;

D O I：

10.1021/jf020691d

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The 3-O-fatty acid ester derivatives (C-12-C-18) of two pentacyclic triterpenic acids, ursolic acid and oleanolic acid, were synthesized under mild esterification conditions in excellent yields (80-85%) and screened for their antifeedant activity, together with the parent acids, against the agricultural pest tobacco caterpillar larvae (Spodoptera litura F) in a no-choice laboratory study. The Urs-12-ene-28-carboxy-3beta- octadecanoate and olean-12-ene-28-carboxy-3beta-hexadecanoate were found to exhibit exceptionally potent antifeedant activities at 50 mug/cm(2) concentration, even after 48 h.

引用

页码：1952 / 1955

页数：4

共 19 条

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[2]

ASCHER K. R. S., 1964, International Pest Control, V6, P6

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